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Finding the Fourth Proportional to 100,237.96, 138,304.02 and 55,525.96

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Solution

The fourth proportional to 100,237.96, 138,304.02 and 55,525.96 is: 76,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,237.96 : 138,304.02 = 55,525.96 : x
  2. Step 2: Convert to fraction form
    100,237.96/138,304.02 = 55,525.96/x
  3. Step 3: Cross multiply
    100,237.96x = 138,304.02 × 55,525.96
  4. Step 4: Simplify right side
    100,237.96x = 7,679,463,482.36
  5. Step 5: Solve for x
    x = 7,679,463,482.36/100,237.96
  6. Step 6: Final answer
    x = 76,612.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.